UNSTABLE PELVIC FRACTURES - SUNY Downstate Medical … · Bleeding Lac Rt groin & unstable pelvis...
Transcript of UNSTABLE PELVIC FRACTURES - SUNY Downstate Medical … · Bleeding Lac Rt groin & unstable pelvis...
UNSTABLE PELVIC FRACTURES
Lidie Lajoie, MDSUNY Downstate Surgery Grand Rounds August 18, 2011
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Case Presentation
13yo healthy girl BIB EMS s/p ped
struck by truck Prolonged
extrication Traumatic arrest on
arrival to trauma bay GCS 3
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Initial Resuscitation
Intubated 1 round epi/atropine BP 118/60, HR 150 Left femoral cordis 6 units PRBC via level 1 Secondary survey:
abrasions anterior abdominal wall, distended Bleeding Lac Rt groin & unstable pelvis T-pod
placed Rt ankle lac & deformity
CXR no PTX PXR: fx Rt pubic symphysis w/ SI dislocation FAST: + RUQ fluid
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Management
Taken emergently to OR for ex-lap. IR notified to prepare for intra-operative pelvic
angiography Operative findings: dark blood around liver
retroperitoneal hematoma intact liver & spleen BP labile despite additional 2 PRBC + 2 FFP
via SC IR prepared for angio PEA, unable to revive after 20min ACLS
protocol
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EpidemiologyAnatomy & ClassificationAssociated InjuriesTreatment AlgorithmInitial ManagementPelvic Packing vs IR Embolization
Unstable Pelvic Fractures
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Pelvic Fracture Epidemiology
Mechanism MVC 67% Pedestrian struck 15% Motorcycle 5% Fall/Jump 5% Crush 5%
Mortality High-energy 10-20% mortality Open fractures 50% mortality
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Pelvic Ring
2 inominate bones
Sacrum
2 sacroiliac jonts
Pubic symphysis
Unstable = disrupted in 2 places (15% of pelvic fx)
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Pelvic Stability
additional stability provided by sacrospinous, and sacrotuberous ligaments
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Pelvic Vascular Anatomy
Common Iliac branches over SI joint
MC injured vessels:
superior gluteal
Internal pudendal
Obturator
Lateral sacral
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Pelvic Fracture Classificationwww.downstatesurgery.org
Lateral Compression Fractures
41% of all pelvic fractures Shortens diameter across pelvis Average 4 units prbc Blood loss from associated injuries rather than
fracture Abdominal solid organ Thoracic: lungs, aorta Cervical spine
Mechanisms T-bone MVC Ped struck from side Fall from height landing on side
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Lateral Compression: LC 1
Transverse pubic rami fracture & ipsilateral sacral compression
Stable Few associated
injuries
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Lateral Compression: LC 2
Transverse pubic rami fracture & iliac wing fracture
Mildly unstable Treatment: bedrest ORIF
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Lateral Compression: LC 3
Transverse pubic rami fracture & contralateral open-book injury
Rollover injury Unstable fracture Hemodynamic instability
and associated injuries common
Treatment: emergent ex-fix
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Anteroposterior Compression (APC)
26% of all pelvic fractures Widens pubic symphysis and SI joints Average 15 units prbc Blood loss from vascular disruption Associated with sacral plexus and
urogenital injuries Mechanism
Head-on MVC Straddle injuries: motorcycle collision Crush injuries
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Anteroposterior Compression: APC1
Symphyseal diastasis 1-2cm with normal posterior ligaments
Few associated injuries
Treatment: bedrest in lateral position
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Anteroposterior Compression: APC2
Symphyseal diastasis or vertical pubic rami fracture with anterior SI joint disruption
Rotationally unstable Associated with
hemorrhage and nerve injury
Treatment: emergent ex-fix. IR embolization (20%)
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Anteroposterior Compression: APC3
Symphyseal diastasis or vertical pubic rami fracture with complete SI joint disruption
Internal hemipelvectomy Associated with internal
iliac vessel diruption, lumbosacral plexus injury, and intra-abdominal organ injury
Treatment: Emergent ex-fix IR embolization (>20%)
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Vertical Shear (VS) 5% of all pelvic fractures Associated with sacral nerve,
abdominal organ, & additional fractures but less vascular injury than severe APC fractures
Sympyseal diastasis or pubic rami fx with disruption of SI joint, iliac wing, or sacrum with vertical displacement
Mechanism Jump/fall from height landing
on extended leg Structural collapse (scaffolding) Motorcycle abrupt stop
Treatment Emergent ex-fix IR embolization (20%)
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Combined Mechanism (CM)
10% of all pelvic fractures
LC + VS or LC + APC
Very unstable Associated with
multiple organ injuries
Treatment: Emergent ex-fix IR embolization
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Associated Injuries
Neurologic L5 & S1 nerve roots,
sciatic, femoral, pudendal, and superior gluteal nerves
10-15% of patients, 50% in VS fractures
Vascular 90% venous, 10% arterial 60% hypotension from
pelvic hemorrhage in LC & APC 2-3 fractures
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Associated Injuries
Urogenital Bladder rupture 5-
10% Urethral injury 5-
10% MC in APC fractures Vaginal – open fx
Rectal Open fx Diverting colostomy
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Assessment of Pelvic Stabilitywww.downstatesurgery.org
Stabilization of pelvic fractureswww.downstatesurgery.org
Preperitoneal pelvic packing
6-8cm midline incision extending from pubic symphysis cephalad
Midline fascia divided 3 laparotomy pads placed on each side of bladder Fascia closed with 0-PDS, skin closed with staples Return to OR in 24-48hrs for packing removal
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Pelvic Packing vs Angiography
20 angio, 20 pack Angio 130 min Pack 45 min No difference in
mortality Decrease # PRBC
needed in packing group
11 angio, 13 pack Angio 140 min Pack 79 min No difference in
mortality
Osborn et al 2009 Tai et al 2011
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QUESTIONS?
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References
Canale & Beaty. Campbell’s Operative Orthopedics, 11th ed. 2007 Feliciano, et al. Trauma, 6th Ed. 2008 Osborn PM et al. Direct retroperitoneal pelvic packing versus
pelvic angiography: a comparison of thwo management protocols for haemodynamically unstable pelvic fractures. Injury 2009
Simon RR et al. Emergency Orthopedics, 5th ed. 2007 Skinner, HB. Current Diagnosis and Treatment in Orthopedics, 4th
Ed. 2006 Suzuki T, et al. Pelvic packing or angiography: competitive or
complementary? Injury 2009 Tai DK, et al. Retroperitoneal pelvic packing in the management
of hemodynamically unstable pelvic fractures: A level 1 trauma center experience
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